OMXCodecProxy.h
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef OMX_CODEC_PROXY_DECODER_H_
#define OMX_CODEC_PROXY_DECODER_H_
#include <android/native_window.h>
#include <media/IOMX.h>
#include <stagefright/MediaBuffer.h>
#include <stagefright/MediaSource.h>
#include <utils/threads.h>
#include "mozilla/media/MediaSystemResourceClient.h"
#include "mozilla/MozPromise.h"
#include "mozilla/RefPtr.h"
namespace android {
struct MetaData;
class OMXCodecProxy : public MediaSource
, public mozilla::MediaSystemResourceReservationListener
{
public:
typedef mozilla::MozPromise<bool /* aIgnored */, bool /* aIgnored */, /* IsExclusive = */ true> CodecPromise;
// Enumeration for the valid resource allcoation states
enum class ResourceState : int8_t {
START,
WAITING,
ACQUIRED,
NOT_ACQUIRED,
END
};
static sp<OMXCodecProxy> Create(
const sp<IOMX> &omx,
const sp<MetaData> &meta, bool createEncoder,
const sp<MediaSource> &source,
const char *matchComponentName = nullptr,
uint32_t flags = 0,
const sp<ANativeWindow> &nativeWindow = nullptr);
RefPtr<CodecPromise> requestResource();
// MediaSystemResourceReservationListener
void ResourceReserved() override;
void ResourceReserveFailed() override;
// MediaSource
virtual status_t start(MetaData *params = nullptr);
virtual status_t stop();
virtual sp<MetaData> getFormat();
virtual status_t read(
MediaBuffer **buffer, const ReadOptions *options = nullptr);
virtual status_t pause();
protected:
OMXCodecProxy(
const sp<IOMX> &omx,
const sp<MetaData> &meta,
bool createEncoder,
const sp<MediaSource> &source,
const char *matchComponentName,
uint32_t flags,
const sp<ANativeWindow> &nativeWindow);
virtual ~OMXCodecProxy();
private:
OMXCodecProxy(const OMXCodecProxy &);
OMXCodecProxy &operator=(const OMXCodecProxy &);
Mutex mLock;
sp<IOMX> mOMX;
sp<MetaData> mSrcMeta;
char *mComponentName;
bool mIsEncoder;
// Flags specified in the creation of the codec.
uint32_t mFlags;
sp<ANativeWindow> mNativeWindow;
sp<MediaSource> mSource;
sp<MediaSource> mOMXCodec;
RefPtr<mozilla::MediaSystemResourceClient> mResourceClient;
ResourceState mState;
mozilla::MozPromiseHolder<CodecPromise> mCodecPromise;
};
} // namespace android
#endif // OMX_CODEC_PROXY_DECODER_H_